Home / 3,993.86-5,511.36-2,225.48

Finding the Fourth Proportional to 3,993.86, 5,511.36 and 2,225.48

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Solution

The fourth proportional to 3,993.86, 5,511.36 and 2,225.48 is: 3,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.86 : 5,511.36 = 2,225.48 : x
  2. Step 2: Convert to fraction form
    3,993.86/5,511.36 = 2,225.48/x
  3. Step 3: Cross multiply
    3,993.86x = 5,511.36 × 2,225.48
  4. Step 4: Simplify right side
    3,993.86x = 12,265,421.45
  5. Step 5: Solve for x
    x = 12,265,421.45/3,993.86
  6. Step 6: Final answer
    x = 3,071.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.